- now it asks before trashing an old image file
- finished code that prints 1 dot per megabyte - added rcs header
This commit is contained in:
Bryce Denney
parent
df86e3266d
commit
cc9e6ee3bc
@ -1,5 +1,6 @@
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/*
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* mkimg2.c
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* misc/mkimg2.c
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* $Id: mkimg2.c,v 1.2 2001-06-01 04:07:21 bdenney Exp $
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*
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* Create empty hard disk or floppy disk images for bochs.
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*
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@ -10,6 +11,9 @@
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#include <assert.h>
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#include "config.h"
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static char *EOF_ERR = "ERROR: End of input";
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static char rcsid = "$Revision: 1.2 $, modified $Date: 2001-06-01 04:07:21 $";
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/* remove leading spaces, newline junk at end.
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return pointer to cleaned string, which is between s0 and the null */
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char *
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@ -39,9 +43,7 @@ int ask_int (char *prompt, int min, int max, int the_default, int *out)
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printf ("%s", prompt);
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if (!fgets (buffer, sizeof(buffer), stdin))
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return -1;
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//printf ("Before cleaning we had: '%s'\n", buffer);
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clean = clean_string (buffer);
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//printf ("After cleaning we had: '%s'\n", clean);
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if (strlen(clean) < 1) {
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// empty line, use the default
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*out = the_default;
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@ -69,9 +71,7 @@ int ask_menu (char *prompt, int n_choices, char *choice[], int the_default, int
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printf ("%s", prompt);
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if (!fgets (buffer, sizeof(buffer), stdin))
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return -1;
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//printf ("Before cleaning we had: '%s'\n", buffer);
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clean = clean_string (buffer);
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//printf ("After cleaning we had: '%s'\n", clean);
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if (strlen(clean) < 1) {
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// empty line, use the default
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*out = the_default;
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@ -93,6 +93,30 @@ int ask_menu (char *prompt, int n_choices, char *choice[], int the_default, int
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}
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}
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int ask_yn (char *prompt, int the_default, int *out)
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{
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char buffer[16];
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char *clean;
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int i;
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*out = -1;
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while (1) {
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printf ("%s", prompt);
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if (!fgets (buffer, sizeof(buffer), stdin))
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return -1;
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clean = clean_string (buffer);
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if (strlen(clean) < 1) {
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// empty line, use the default
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*out = the_default;
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return 0;
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}
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switch (tolower(clean[0])) {
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case 'y': *out=1; return 0;
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case 'n': *out=0; return 0;
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}
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printf ("Please type either yes or no.\n");
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}
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}
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int ask_string (char *prompt, char *the_default, char *out)
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{
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char buffer[1024];
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@ -102,9 +126,7 @@ int ask_string (char *prompt, char *the_default, char *out)
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printf ("%s", prompt);
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if (!fgets (buffer, sizeof(buffer), stdin))
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return -1;
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//printf ("Before cleaning we had: '%s'\n", buffer);
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clean = clean_string (buffer);
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//printf ("After cleaning we had: '%s'\n", clean);
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if (strlen(clean) < 1) {
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// empty line, use the default
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strcpy (out, the_default);
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@ -122,25 +144,40 @@ char *fdsize_menu = "\nChoose the size of floppy disk image to create, in megaby
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char *fdsize_choices[] = { "0.72","1.2","1.44","2.88" };
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int fdsize_n_choices = 4;
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void panic (char *c)
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void fatal (char *c)
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{
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printf ("Internal error: %s\n", c);
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printf ("%s\n", c);
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exit (1);
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}
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int make_image (int sec, char *filename)
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{
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FILE *fp = fopen (filename, "w");
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FILE *fp;
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char buffer[1024];
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int i;
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unsigned int n;
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// check if it exists before trashing someone's disk image
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fp = fopen (filename, "r");
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if (fp) {
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int confirm;
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sprintf (buffer, "\nThe disk image '%s' already exists. Are you sure you want to replace it?\nPlease type yes or no. [no] ");
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if (ask_yn (buffer, 0, &confirm) < 0)
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fatal (EOF_ERR);
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if (!confirm)
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fatal ("ERROR: Aborted");
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fclose (fp);
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}
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// okay, now open it for writing
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fp = fopen (filename, "w");
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if (fp == NULL) {
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// attempt to print an error
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#ifdef HAVE_PERROR
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sprintf (buffer, "while opening '%s' for writing", filename);
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perror (buffer);
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#endif
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exit (1);
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fatal ("ERROR: Could not write disk image");
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}
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// clear the buffer
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for (i=0; i<512; i++)
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@ -150,12 +187,14 @@ int make_image (int sec, char *filename)
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for (i=0; i<sec; i++) {
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n = (unsigned int) fwrite (buffer, 512, 1, fp);
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if (n != 1) {
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printf ("ERROR: Write failed after %d sectors have been written\n", i);
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printf ("\nWrite failed with %d sectors written\n", i);
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fclose (fp);
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return -1;
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fatal ("ERROR: The disk image is not complete!");
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}
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if ((i%2048) == 0) {
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printf (".");
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fflush (stdout);
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}
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if (i&16) printf (".");
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#error fixme
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}
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printf ("done.\n");
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fclose (fp);
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@ -170,11 +209,11 @@ int main()
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char bochsrc_line[256];
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filename[0] = 0;
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if (ask_menu (fdhd_menu, fdhd_n_choices, fdhd_choices, 1, &hd) < 0)
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exit (1);
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fatal (EOF_ERR);
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if (hd) {
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int hdsize, cyl, heads=16, spt=63;
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if (ask_int ("\nEnter the hard disk size in megabytes, between 1 and 65535\n[10] ", 1, 65535, 10, &hdsize) < 0)
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exit (1);
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fatal (EOF_ERR);
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cyl = hdsize*1024*1024/16/63/512;
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sectors = cyl*heads*spt;
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printf ("\nI will create a hard disk image with\n");
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@ -184,21 +223,20 @@ int main()
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printf (" total sectors=%d\n", sectors);
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printf (" total size=%.2f megabytes\n", (float)sectors*512.0/1024.0/1024.0);
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if (ask_string ("\nWhat should I name the image?\n[c.img] ", "c.img", filename) < 0)
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exit(1);
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fatal (EOF_ERR);
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sprintf (bochsrc_line, "diskc: file=\"%s\", cyl=%d, heads=%d, spt=%d", filename, cyl, heads, spt);
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} else {
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int fdsize, cyl, heads, spt;
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char *name;
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if (ask_menu (fdsize_menu, fdsize_n_choices, fdsize_choices, 2, &fdsize) < 0)
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exit (1);
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fatal (EOF_ERR);
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switch (fdsize) {
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case 0: name="720k"; cyl=80; heads=2; spt=9; break; /* 0.72 meg */
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case 1: name="1_2"; cyl=80; heads=2; spt=15; break; /* 1.2 meg */
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case 2: name="1_44"; cyl=80; heads=2; spt=18; break; /* 1.44 meg */
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case 3: name="2_88"; cyl=80; heads=2; spt=36; break; /* 2.88 meg */
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default:
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printf ("ERROR: fdsize out of range");
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exit (1);
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fatal ("ERROR: fdsize out of range");
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}
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sectors = cyl*heads*spt;
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printf ("I will create a floppy image with\n");
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@ -208,13 +246,13 @@ int main()
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printf (" total sectors=%d\n", sectors);
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printf (" total bytes=%d\n", sectors*512);
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if (ask_string ("\nWhat should I name the image?\n[a.img] ", "a.img", filename) < 0)
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exit(1);
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fatal (EOF_ERR);
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sprintf (bochsrc_line, "floppya: %s=\"%s\", status=inserted", name, filename);
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}
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if (sectors < 1)
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panic ("Illegal disk size!");
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fatal ("ERROR: Illegal disk size!");
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if (strlen (filename) < 1)
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panic ("Illegal filename");
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fatal ("ERROR: Illegal filename");
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make_image (sectors, filename);
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printf ("\nI wrote %d bytes to %s.\n", sectors*512, filename);
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printf ("\nThe following line should appear in your bochsrc:\n");
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